如何从类库项目加载视图？

Question

我尝试创建一个VirtualPathProvider并将视图设置为嵌入式资源.

class AssemblyResourceVirtualFile : VirtualFile
{
    string path;

    public AssemblyResourceVirtualFile(string virtualPath)
        : base(virtualPath)
    {
        path = VirtualPathUtility.ToAppRelative(virtualPath);
    }

    public override System.IO.Stream Open()
    {
        string[] parts = path.Split('/');
        string assemblyName = parts[2];
        string resourceName = parts[3];

        assemblyName = Path.Combine(HttpRuntime.BinDirectory, assemblyName);
        var assembly = Assembly.LoadFile(assemblyName);

        if (assembly != null)
        {
            return assembly.GetManifestResourceStream(resourceName);
        }
        return null;
    }
}

和

public class AssemblyResourceProvider : System.Web.Hosting.VirtualPathProvider
{
    public AssemblyResourceProvider() { }

    private bool IsAppResourcePath(string virtualPath)
    {
        String checkPath = VirtualPathUtility.ToAppRelative(virtualPath);
        return checkPath.StartsWith("~/App_Resource/", StringComparison.InvariantCultureIgnoreCase);
    }

    public override bool FileExists(string virtualPath)
    {
        return (IsAppResourcePath(virtualPath) ||
                base.FileExists(virtualPath));
    }

    public override VirtualFile GetFile(string virtualPath)
    {
        if (IsAppResourcePath(virtualPath))
            return new AssemblyResourceVirtualFile(virtualPath);
        else
            return base.GetFile(virtualPath);
    }

    public override CacheDependency GetCacheDependency(string virtualPath,
        IEnumerable virtualPathDependencies, DateTime utcStart)
    {
        if (IsAppResourcePath(virtualPath))
            return null;
        else
            return base.GetCacheDependency(virtualPath, virtualPathDependencies, utcStart);
    }
}

我的控制器

return View("~/App_Resource/Blog.DLL/Blog.Views.Blog.Latest.cshtml");

它确实找到了视图,但我最终得到了这个错误:

... view.cshtml'必须从WebViewPage或WebViewPage <TModel>派生.

尝试使用以下方法显示部分视图时:

@{ Html.RenderAction("Latest", "Blog"); }

---

有办法解决吗？

或者是否有更简单的方法来存储DLL的视图？

Answer 1

发生这种情况的原因是因为您现在正在服务于未知位置的剃刀视图,标准~/views/web.config不再适用.因此,您可以@inherits System.Web.Mvc.WebViewPage在自定义视图中放置一个内容,但这可能会非常麻烦.

您可以查看以下文章.